I used john for the first time recently after a lot of other companies were huge flakes. He and his crew were timely, courteous and professional. They did a great job replacing all my ducting and registers. From now on I won't use anyone else for my HVAC. Thanks john! read more

I contacted Northstar for my yearly heater maintenance. Andrew Ramirez did an outstanding job. He cleaned my inside vent and changed the filter. He inspected and cleaned the heater on the roof. He clearly explained needed services for the future. He is excellent at his job. read more

My call to Northstar included a service for my rental's heating system and a check on my parents' heating system, which is quite old. Ivan was very knowledgeable and efficient, looking over both systems with efficiency and safety in mind. I appreciated the way he dealt with my older parents, respectfully explaining what was needed. read more

My 22-year-old air conditioner gave out in the midst of the heat wave and I called for help. Rick came out and examined my system and as I had suspected let me know I needed a new unit (couldn't add R22 anymore and it was out). New units are expensive but they offer financing and after some googling I went with the lowest standard model and was able to have an install the next day, so just one day of sweltering! Juan and Alan came out and did a professional job installing and when they ran into a problem with my existing blower (located in the base heater) Frank came out and was more than accommodating and even drove for an hour to get a replacement. Very satisfied with this company and my overall experience. Everyone was courteous and pleasant despite the heat and I'm back to enjoying a cool house. read more

Highly recommend this service company John Martin's best come to you home with 5 Star service Very personal and professional This team knows what they are doing Mr. Rick from the team is very knowledgeable smart and friendly. For any of your air conditioning and heating needs call them I personally recommend them. read more

I was a multi year client of Northstar until yesterday. My A/C needed to be recharged with 9 gallons of R22 refrigerant. I called Northstar and a service tech responded. He rightly determined that I had a leak in the system. I requested to have the R22 and sealant put in for now. He quoted me a price of $3500. I was flabbergasted! I checked the price of R22 and a 30 gallon container was $725 to $945. I asked the service tech why are you charging this outrageous price. His answer was, "that's what our book tells me to charge you ". I asked him if he could justify the exorbitant price and he couldn't. I, obviously, did not use their services and called another licensed A/C company to do the simple task of recharging my A/C unit for less than 1/3 the price of Northstar. Please do a little research before using any A/C company and it could save you thousands. read more

Loved the customer service provided by Alan and Juan. They were courteous, careful to take care of protecting our floors, and answered any questions presented to them. The installation of the new AC unit went very smoothly. Absolutely no hitch. When we get the next one installed we would love to have Alan and Juan come back to install that unit. We also enjoyed our time with Rick. He was very patient in explaining what we needed and the options we needed to consider. He was not pushy and we felt that he had our interest in mind. We would recommend this company to anyone. The staff that we have met so far and even over the phones were friendly and courteous. read more

This will be that last review I give Northstar but thought it was important to leave this information for the public. They call and call and call, then call some more. IT IS RIDICULOUS how much these people call - it's borderline harrassment.I was done with them but, last year, they said we were due for one of our "free" maintenance checks on our A/C. We would also have a free one to flush our water heater. Anyway, they serviced the A/C - to the tune of $1200 for some motor. The unit was only 4 or 5 years old but my husband agreed to it. Then, they scheduled time to do the water heater flush so we made an appointment for that. We also need a plumbing issue looked at - great. They can do it at the same appointment. About 20 minutes before the appointment, we get a call saying that the technician was stuck at another call (understandable) and that they would call back to reschedule. A week (or more) goes by and no phone calls. Mind you, this company must have their staff on an auto-dialing system, from several different phone #'s because prior to their cancelling out appointment, the calls were ANNOYINGLY FREQUENT. Finally, someone calls but I am done with them and don't answer. They call my husband. The call OUR SON who isn't even on the account and I'm not sure how they got his phone #. Different phone #'s calling numerous times a week/day/month - harrassement perhaps? They finally get ahold of my husband who sets an appointment for the water heater flush. I tell him I was done with them and that I wanted to give our business to a Veteran owned company. He said he call them back to cancel. Last night, I'm on the phone with my son who lives in another state, a call comes in from Northstar. I don't answer, as I'm on the phone. They call my husband - he was busy and didn't answer. They call MY SON AGAIN who just got home from running errands. THEN THEY CALL MY PHONE # AGAIN!!! Seriously, is this not harrassment? I finish my phone call with my out of state son and call them back. Explained to her the months, even years of issues with Northstar. I was nice to her because I feel bad for these employees whose job seems to be harrassing existing customers. Management - please, look what you're doing. The customer service reps are great and doing their jobs but WHY THE RIDICULOUS AMOUNT OF PHONE CALLS?? I am curious as to whether others have had this issue with them. I am not even exaggerating. read more

Would like to recognize two office administrators by the names of Debbie and Valerie. Their expertise, patience, and kindness were all greatly appreciated when corresponding over a few days period. Any questions or concerns I may have had were quickly answered with care and appreciation. Thank you ladies for the excellent service that you both provided when representing Northstar. read more

They installed my new ac about 5yrs ago they came out to clean for first 3 years I started having problems 2yrs ago I been calling leaving messages no answer I thought I got lucky in the beginning of March I talked with but they were leaving until the end of March so I started calling texting no answer be careful if you do business with this company read more

Northstar heating and AC is an excellent company. They have serviced my home for years and have always been satisfied with their work and staff. Highly recommended. read more

Fabiola was absolutely great and it you need service done this is the place to go!!! Overall recommend 100%.

I just want to say thank you to North Star. You guys have been so reliable every time I've called for aervice You were able to get somebody out here right away. Customer Service has been very helpful during a stressful time. Your technicians have been very insightful. When it is so hot and your AC goes down you get a little cranky. So thank you for putting up with me. Most people write to complain. But when a company does good you just want to give them a big KUDOS! read more

Had a bid from these guys to do some plumbing in the shower before we had it tiled they gave us a bid of $3800. I thought that they were there to do the work but it appears they were only there to quote it got another bid the same day and the job done for $1100 they bid some other stuff for some friends. The same thing way overpriced They are the biggest rip off in the plumbing business. If you get a bid from them make sure you get another bid from someone else. read more

We purchased an AC unit 3 years ago and the maintenance service has been great. The customer service has been very professional, and personable. Edwin the technician did a great job explaining how our system worked and what must be done to keep it working at its best. read more

I have been using this company since COVID back in 2020. Hot water heater went out and after calling several places that do that kind of work this company was the only one to call back and come out despite the fear that pretty much stopped everything. anyway no judgement, since then they helped with many upgrades. they are a new heater and AC, some bathroom upgrades and other improvements. today Jesus came out and replaced some old angle stops and the powder room faucet. he was quick and everything was fine . I suggest you give them a try and if you do anything major get one of their maintenance plans . that ensures you keep your HVAC in good condition and it saves you money. read more

My AC went out last night and I had no idea who to call. Everyone was booked at least 5 days out and I just couldn't wait. Reached out and spoke with the customer service rep by the name of Tamara. She was quick to get me on the books for next available, since she knew the severity of my situation. Northstar came out the next day and turns out that my filter needed to be changed. The technician, Andrew showed me that I needed to change my filters every 3 months and provided the correct size so I can purchase them myself. Once again, service was 5 stars and the communication was excellent. I can't thank them enough for getting me up and running again. read more

Northstar Plumbing Heating and Air Conditioning in San Dimas, California acquired John A. Martin Heating and Air Conditioning. I dealt with Martin for years and Martin was a company of honesty, integrity and they valued customer relationships. Northstar does not demonstrate honesty, integrity and the value of customer relationships Before posting this review, I requested to speak with a Northstar manager on two occasions to address the problem described below, but Northstar has not responded to my requests. Since Northstar is ignoring me, I'm sharing my experience for other users to consider when researching heating and air conditioning companies. While at my home for a routine air conditioning service, Northstar offered to install an "air scrubber" in my heating and ac unit. Based on Northstar's verbal statement, I understood the cost of the air scrubber to be twenty-four dollars ($24.00). When the job was done, I learned the cost of the air scrubber was twenty-four hundred dollars ($2,400.00)!. I didn't know this at the time, but California law requires contractors to provide a written estimate if the cost of repairs will exceed five-hundred dollars ($500.00). There would have been no miscommunication regarding the price of the air scrubber if Northstar obeyed the law. To make matters worse, the air scrubber can be found online selling for $975.00 to $1045.00. The air scrubber is a Micropure MX4, 9" model for 3 to 5 ton HVC Systems. After the job was done and I learned the air scrubber cost $2,400.00, I asked the tech to uninstall it and take it back. The tech told me it would be too difficult to uninstall the air scrubber, although it took the tech less than half an hour to install it. I paid the tech the amount the the technician said I owed Northstar for the air scrubber, because I trusted Northstar would resolve this issue, and I also did not want a contractor's lien placed on my home for disputing this transaction. Initially, I attributed this transaction to the inexperience or lack of training of the Northstar technician. But, since Northstar is ignoring my requests to discuss this issue, I can only conclude my story represents Northstar's way of doing business. If you choose to deal with Northstar, be very careful with this firm. read more

Had a technician come out last Wednesday to check my heater, he was courteous, wore a face mask, checked my heater, said it was shot, I needed a new system 55 hundered. Today I had a second opinion, he said my furnace isn't that old, fixed it to the tune of $65.00 , thank God for second opinion! read more

I have used John Martin Heating and Air for decades. He is an honorable man, his employees are honorable and hard working. But, he retired and North Star took over his customer list. The North Star employee Juan came out to my home and told me that my floor heater was basically not up to code, he quickly threw out some verbiage that sounded like official state mandated code supporting his deduction. To to the mandated retrofit to bring my system to code would cost me over $1,800! I asked when said law went into effect and he said for a very long time, years. I asked him why John Martin never told me this and why would he leave me in danger of not bringing my unit up to code - red flag(!!!) John Martin would NEVER do anything other than by the book. Juan got a bit huffy with me, I asked him to please calm down and again asked how the work he said was necessary when John Martin has serviced my equipment for many, many years and never had issue. I think Juan realized he was caught in a shakedown which ended our communication. I then called North Star and spoke with the receptionist. I asked for the owner whom she said in Tommy - she would not give me a last name. She said she would pass on my concern to the office manager. I had asked for the owner. She was hesitant to give him my concern. What kind of a company doesn't tell a customer the owners last name? Something tells me don't walk, run. Just saying if North Star tells you that you need expensive retrofitting equipment on your unit, get a second opinion - this company screams shady!!!! I got a call from the owner, Tommy within the half hour. I will give him that. He agreed to go access the situation and get back to me. Update to follow.... read more

Both Jason and Charley, went beyond the call of duty in repairing our tankless water heater! They had to exchange a hot water heater that was not rated for 7000 feet, which is where we live in big bear lake! And they were both extremely kind and courteous, and were extremely efficient at what they were doing! in addition to exchanging the water heater they installed recirculation pumps that allow for instantaneous hot water in the kitchen and the most distant bathroom! They also serviced our shower in one of our bathrooms to make it function correctly! I would highly recommend both of these individuals for any plumbing work that was needed in your home! They both should be commended for their excellent work as well as their kind and courteous service demonstrated during the repair call on our behalf!!! Jason took the lead and was able to both find incorrect mini issues that were associated with the warranty repairs that he had to perform!!! Again, I would highly recommend Jason for any plumbing repair needed in your home!!! read more

Our toilet was not working. Our friends suggested Northstar and Paul Michael came to our rescue. Paul let us know what needed to be done the price was fair and got it done. Was fast and efficient and very polite. I will definitely use them again for all my plumbing needs. Thanks again Paul!! read more

The service is always on time and professional. Jeffery was my service provider this week. He was very professional and explained what was done. He was friendly and easy to talk to. . read more

Tommy just left. He was so sweet with my dogs and so knowledgable about HVAC. He made a couple of excellent suggestions and showed me ways to make my unit last longer and work more efficiently. I've been using Northstar for several years and have always been very happy. They're my go-to-guys! read more

We have been using John A. Martin Heating and Air for our home and business for as long as I can remember. They offer quick, professional service with very reasonable prices. I highly recommend them!! read more

Prompt service, always calls back, quality work. First time I called everything was excellent I would have rather had a quote 1st, instead of finding out at the time due. So the 2nd time I got a quote upfront and unfortunately it ended up being significantly more. I'm a little hesitant to call if I need service, but the work is always excellent. read more

The apartment complex I live in uses John Martin Heating and Air for our central air/heat. This the 2nd time I have ever had to have them come out and Mike did a great and FAST job! My apartment is already cooler and he's only been gone a 1/2 hour! Thanks Mike!! read more

John A. Martin Heating & Air, Inc. was highly recommend to me. I called them for an appointment for a service call to see what was wrong with my air conditioning. They came the next day. Their technician Bruce was the one who came out. He was very professional and prompt. I will use them for any future air or heating problems I have. I highly recommend them. read more

Was very pleased with the outstanding service provided by their technician .. Sevag. Very professional and personable service. He called to let me know he was on the way and showed up on time. Explained in great detail the work he was going to do (it was an annual maintenance on my heater) and outlined the cost very clearly. During each step of the process he would explain what was going on .. that is reassuring to me. He even hauled out a dead rat in my attic!! (He could have said nothing and I would never have known.) Very honest individual and represented his company very well. I would use this company again and specifically ask for him again! read more

AC unit went out on Sunday morning. Friend recommended this place. Gave them a call first thing Monday and got a service tech the same morning. Pete showed up promptly and did an awesome job in finding and fixing the issue. Replaced capacitor and also filter and did a check for any other issue. He was courteous and thorough and completely professional. Will definitely use them again. read more